BUILD ERROR - V2.2.3 ON WINRT 8.0 VS 2012

Hello,
In a Blank Windows Store App I installed the MyToolkit and MyToolkit.Multimedia via Nugget and I got a build error:

Error 3 The type or namespace name 'Multimedia' does not exist in the namespace 'MyToolkit' (are you missing an assembly reference?) C:\Users\tfern_000\documents\visual studio 2012\Projects\HtmlControlApp\HtmlControlApp\MainPage.xaml.cs 37 154 HtmlControlApp

Warning 5 The primary reference "MyToolkit.Extended, Version=2.2.3.0, Culture=neutral, processorArchitecture=MSIL" could not be resolved because it has an indirect dependency on the .NET Framework assembly "System.Runtime.WindowsRuntime, Version=4.0.10.0,
Culture=neutral, PublicKeyToken=b77a5c561934e089" which has a higher version "4.0.10.0" than the version "4.0.0.0" in the current target framework. HtmlControlApp

Warning 6 The primary reference "MyToolkit.Extended, Version=2.2.3.0, Culture=neutral, processorArchitecture=MSIL" could not be resolved because it has an indirect dependency on the .NET Framework assembly "System.Runtime.InteropServices, Version=4.0.10.0,
Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" which has a higher version "4.0.10.0" than the version "4.0.0.0" in the current target framework. HtmlControlApp

Warning 4 The primary reference "MyToolkit.Extended, Version=2.2.3.0, Culture=neutral, processorArchitecture=MSIL" could not be resolved because it has an indirect dependency on the .NET Framework assembly "System.Runtime, Version=4.0.10.0, Culture=neutral,
PublicKeyToken=b03f5f7f11d50a3a" which has a higher version "4.0.10.0" than the version "4.0.0.0" in the current target framework. HtmlControlApp

All updates are installed and the older version "2.0.14" works fine. I was trying to updated the toolkit hoping it solves the problem MF_MEDIA_ENGINE_ERR_SRC_NOT_SUPPORTED I am getting on the video "wsNwglNG_xU"... =)